Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual driver possui um valor de grade de 22?
 ###Tabelas: CREATE TABLE subnet_and_host_counts (subnet_and_host_counts_id AUTO_INCREMENT PRIMARY KEY, Prefix size VARCHAR, Network mask VARCHAR, Available subnets INT, Usable hosts per subnet INT, Total usable hosts INT) CREATE TABLE riders'_jersey_progress_table (riders'_jersey_progress_table_id AUTO_INCREMENT PRIMARY KEY, Stage INT, Winner VARCHAR, General Classification VARCHAR, Mountains Classification VARCHAR, Sprint Classification VARCHAR, Team Classification VARCHAR) CREATE TABLE race (race_id AUTO_INCREMENT PRIMARY KEY, Driver VARCHAR, Constructor VARCHAR, Laps VARCHAR, Time/Retired VARCHAR, Grid VARCHAR) CREATE TABLE list_of_sovereign_nations_with_fewer_than_500000_people (list_of_sovereign_nations_with_fewer_than_500000_people_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Country/territory/entity VARCHAR, Population INT, % of world population VARCHAR, Region VARCHAR) CREATE TABLE list_of_fa_cup_third-fourth_place_matches (list_of_fa_cup_third-fourth_place_matches_id AUTO_INCREMENT PRIMARY KEY, Season VARCHAR, Date VARCHAR, Winner VARCHAR, Loser VARCHAR, Score VARCHAR, Venue VARCHAR, Attendance VARCHAR)  
SELECT Driver FROM race WHERE Grid = 22